KR20110096652A - Radon reduction functional inorganic paint composition - Google Patents

Radon reduction functional inorganic paint composition Download PDF

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KR20110096652A
KR20110096652A KR1020100016002A KR20100016002A KR20110096652A KR 20110096652 A KR20110096652 A KR 20110096652A KR 1020100016002 A KR1020100016002 A KR 1020100016002A KR 20100016002 A KR20100016002 A KR 20100016002A KR 20110096652 A KR20110096652 A KR 20110096652A
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weight
radon
coating composition
functional inorganic
inorganic coating
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이병기
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주식회사 코켐스
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/04—Alginic acid; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C08L89/005—Casein
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
    • C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
    • C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • C08K2003/265—Calcium, strontium or barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C08K2003/387—Borates

Abstract

The present invention relates to an inorganic coating composition, and relates to an air purification functional inorganic coating composition having adsorption functionality of radon gas and volatile organic compounds and formaldehyde, which are primary carcinogens that cause lung cancer.
The main feature of the present invention is that as the main substrate, the adsorbent used activated carbon powder excellent in adsorption of harmful substances such as radon, formaldehyde, volatile organic compounds, and odor, and the binder used water-soluble inorganic silicate. Chunwoomun, tourmaline and monazite, natural minerals having anion and far-infrared ray emission effect as other sub-bases, calcium carbonate, zinc oxide, thickener to prevent viscosity control and phase separation as a filler to enhance coating strength It relates to an air purification functional inorganic coating composition, characterized by mixing sodium alginate and the like.

Description

Radon Reduction Functional Inorganic Paint Composition

The present invention relates to a radon-reducing functional inorganic coating composition, which absorbs radon, a primary carcinogen that causes lung cancer, reduces radon generation, and has radon adsorption functionality of toxic organic compounds such as volatile organic compounds, formaldehyde and odors. A reducing functional inorganic coating composition.

Recently, with increasing interest in people's living and living environments, various products have been developed and used to improve indoor air quality. As a result, occupants of new constructions should be constructed with eco-friendly building finishes using eco-friendly materials that do not generate harmful substances such as volatile organic compounds and formaldehyde, or air cleaners and air purification functional paints that force indoor air to be purified. And coating agents.

In the above-described air purification functional paints, Korean Patent Registration Nos. 10-0626176 and 10-0641313 disclose functional paints and paints using charcoal powder, respectively. Functional paints and paints using charcoal powder have been recognized to exhibit air purification, humidity control and adsorption of harmful substances through numerous experiments. However, the problem is that as a paint adhesive, chloroprene, polyvinyl acetate, polyacrylic acid esters and the like have excellent adhesive strength. Since the synthetic resin adhesive may remain volatile monomer after coating and toxic gas may be generated in case of fire, it cannot be concluded that it is completely harmless to the environment. In addition, since the synthetic resin is cured in the form of a film to exhibit the adhesive force, the film is formed on the surface of the charcoal powder may impair the adsorption functionality of the charcoal.

On the other hand, in Korea Patent Registration 10-0626176, the pores of the high humidity or submerged charcoal provide humidity and environment where bacteria or molds can grow to prevent bacteria or molds from propagating and thus prevent the deterioration of the adsorption function of charcoal. Silver nano powder is used, and Korean Patent Application No. 10-2009-0043364 uses charcoal powder and inorganic silicate binder to maintain the pores of charcoal powder so that adsorption functionality is not reduced, and volatile organic compounds are not generated from the binder. Also describes a coating composition that does not generate toxic gas.

Charcoal-related paints and paints to improve indoor air quality as described above are intended to adsorb and remove formaldehyde, volatile organic compounds and odors generated from building finishing materials, and to provide far infrared and anion emission characteristics using other additives. have.

On the other hand, radon (Rn), a primary carcinogen that causes lung cancer, is a colorless / odorless gaseous substance that is produced after several stages of radioactive decay of uranium ( 238 U) in soil and rocks. It is mobile and is 9 times heavier than air, so it exists near the surface and can be easily inhaled by humans through respiration. Radon was classified as a carcinogen by the World Health Organization (WHO) in 1988, and the International Cancer Research Center (IARC) defines it as a first-class carcinogen along with asbestos in terms of health risks. Known as a high risk material.

Recent data show that the US Environmental Protection Agency estimates that 20,000 people die each year from radon in the United States, more than ten times higher than the risk of death from air pollution. In the United Kingdom, the National Radiation Protection Agency estimates that approximately 2,500 of the UK's 41,000 lung cancer deaths (1992) are due to the cumulative exposure of radon progeny. According to 2004 data, 9% of Europeans have a lung cancer mortality rate. In Korea, about 3.8-15.4% of the total 3,578 lung cancer deaths in 1987 were reported to have been estimated to have been killed by radon (1991 Korean Health Association).

The danger of such radon is that, unlike formaldehyde and volatile organic compounds, which are existing harmful substances, they have no color and do not generate odors, so that humans are not aware of radon exposure. In addition, formaldehyde and volatile organic compounds are relatively deadly to human life such as respiratory disease and skin disease, but radon is very deadly because it causes lung cancer.

Therefore, the United States and Sweden have been conducting a nationwide radon survey since the 1990s, and have been actively pursuing measures to reduce radon exposure by reducing buildings such as building repairs for high-density homes. Selecting a high area and applying reduction technology to construct a building. In Korea, the Ministry of Environment reported a comprehensive plan for indoor radon management in 2007, and announced that it plans to implement radon management plan and reduction plan in 3 stages in earnest by 2012.

At present, the technique being practiced worldwide to reduce radon is mainly a sealing technique. In other words, the radon generated from the soil is introduced into the room through the cracks and crevices of the building, and in the United States, it is recommended to install the building after installing a thin film to block the soil and the building. In addition, in the case of existing buildings, technologies for introducing paint and paint to interior walls have been developed.In Korea, patent registration No. 10-454753 adds radon blockers to concrete to suppress the release of radon during construction. Although the method of making the method is described, the reduction efficiency of radon is 30% or less, and the reduction efficiency is low. Patent application 10-2009-0047983 describes three coating layers of five coats of five coats of five compositions with five compositions. Although a method of blocking radon by forming a thick coating layer of 1 mm or more has been described, there is a problem in that the economy is inferior and various kinds of volatile organic compounds are secondaryly generated.

On the other hand, radon has been found to be mainly generated in underground structures in contact with the soil, but recently, radon is also generated at a high level in building materials such as gypsum board, concrete, and yellow soil, which are used for the interior walls of buildings. It is being investigated. Therefore, the Ministry of Environment requires that radon concentration be kept below 4 picocuries in the recommended indoor air quality standards.

Therefore, it is considered that the method developed to date is not suitable as a method for reducing radon, and the most suitable method has been suggested as a method of adsorbing radon introduced into the room.

Against this background, as adsorbent adsorbing radon, charcoal powder is used in Korean Patent Application No. 10-2009-0043364 and zeolite is used as Adsorbent in Korean Patent Application No. 10-2009-0063774 and water-soluble to maintain pores of each adsorbent as it is. Inorganic silicates are used as binders. These technologies have relatively high radon reduction rate, economical efficiency, and ease of use, but they do not satisfy more than 50%, because radon reduction rate is maintained about 40 ~ 45%.

Accordingly, the present inventors established a technique for reducing radon introduced into the room in principle, and as a result of striving to solve the problems of the prior art, by adsorbing / decomposing formaldehyde and volatile organic compounds that cause sick house and swollen syndrome, The invention of the air purification functional inorganic coating composition which can greatly improve the indoor air quality and reduce the radon in an efficient and innovative manner was completed.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating composition for painting interior walls of buildings, and more particularly, to an air-purifying functional inorganic coating composition for reducing radon gas, which is fatal to humans as a primary carcinogen. The adsorbent as a main substrate is radon, formaldehyde, volatile organics. Activated carbon powder having excellent adsorption function of harmful substances such as compounds and odors was used, and the binder was water-soluble inorganic silicate. As other subsidiary materials, monazite, a natural mineral having an anion and far-infrared emission effect, calcium carbonate, zinc oxide, a filler for enhancing the coating film strength, methyl cellulose, casein, sodium alginate, etc. as a thickener to prevent phase separation. Environment-friendly air purification functional inorganic coating composition that removes formaldehyde and volatile organic compounds that adversely affect human living environment after coating and reduces radon, a primary carcinogen that causes lung cancer by 50% or more To provide.

According to the features of the present invention for achieving the above object has an air purification function, humidity control function and deodorizing function, 5-30% by weight of activated carbon, which can reduce radon more than 50% efficiently, the solid content is 40 ± 2 30% to 70% by weight aqueous silicate aqueous solution, 0.5 to 10% by weight natural minerals with anion and far infrared emission characteristics, 1 to 10% by weight filler to increase the strength of coating, thickener to prevent viscosity control and phase separation 0.1 to 3% by weight, the remainder is mixed with water, characterized in that the total composition consists of 100% by weight.

In the present invention, the activated carbon, natural minerals and fillers added as powders were used after being pulverized to 325 mesh or less so as to be easily applied by using a brush, a roller, and a spray.

Water-soluble inorganic silicate aqueous solution that can be adhered to maintain the porosity of the activated carbon as it is, can be used both potassium silicate or sodium silicate solution having a solid content of 40 ± 2% by weight. These silicates are SiO 2 in the formula Various products are on sale depending on the molar ratio of K 2 O and Na 2 O, and the adhesive strength varies depending on the composition. In order to exhibit the highest adhesion through the present invention, the molar ratio of K 2 O and Na 2 O to SiO 2 was adjusted to be about 1: 2.8 to 3.4.

The natural minerals that emit anions and far infrared rays, such as mica, tourmaline, and monazite, can be added individually or in combination, and a large amount of anions and far infrared rays are released to decompose volatile organic compounds and formaldehyde adsorbed on activated carbon. Adsorption function can be maintained continuously.

In order to prevent viscosity control and phase separation, cellulose, casein, sodium alginate, and the like, which are dissolved in water and exhibit viscosity, may be used, respectively, or in combination thereof.

In order to improve the intensity | strength of a coating film, a filler can use calcium carbonate, zinc oxide, titanium dioxide, etc. individually or in mixture.

Air purification functional inorganic coating composition of the present invention according to the above problem solving means formaldehyde, volatile organic compounds and odors generated in indoor living and living environment of buildings, such as apartments, hospitals, schools, nursing homes, basements, in particular cement / concrete It is a paint that reduces the generation of radon gas generated from building materials such as plaster, gypsum board and loess, and has an effect of improving indoor air quality by painting on the walls, ceilings and floors.

In the present invention, as a porous material which is an adsorbent such as formaldehyde, volatile organic compounds and odors, activated carbon having better adsorption function than charcoal powder is used. In addition, in order to prevent the adsorption function of activated carbon from deteriorating due to the use of an adhesive, a flame-retardant water-soluble inorganic silicate solution containing no volatile organic compounds was used, and cellulose, casein and sodium alginate were respectively used or mixed as a viscosity regulator. D) An anion and far-infrared ray emitting natural mineral is added to maintain the adsorption function of activated carbon and to increase the coating strength. Finally, it is produced in the residential and living environment where cement / concrete wall, gypsum board and loess interior materials are used. It has the effect of showing air purifying function by adsorbing toxins and harmful substances on human body, easy storage stability and constructability, and no toxic substance is generated even in case of fire.

To describe the present invention in detail to achieve the above object, the activated carbon, which is a porous adsorbent, was used to be pulverized to 325 mesh or less, and in exhibiting radon adsorption, humidity control, and volatile organic compound adsorption in a coating film of an air purification functional inorganic paint. The amount of activated carbon used is preferably 5 to 30% by weight. If the content of activated carbon is 5% by weight or less, radon adsorption, air purification, humidity control, and volatile organic compound adsorption functions are too low. On the other hand, if it is 30% by weight or more, the adhesion by the uniform water-soluble inorganic silicate adhesive is poor and the coating film is poor. More preferably, 10 to 25% by weight is used.

Inorganic silicate aqueous solution, which is an adhesive, can be used either potassium silicate or sodium silicate solution having a solid content of 40 ± 2% by weight, and the molar ratio of K 2 O and Na 2 O to SiO 2 in the adhesion is 1: 2.8 to 3.4. It is a range and 30-70 weight% of usage-amount is preferable. If the amount of silicate used is 30% by weight or less, the adhesive strength is poor. On the other hand, when it becomes 70 weight% or more, a hardening rate will become too slow and a coating film will become bad. More preferably, 35 to 60% by weight is used.

Natural minerals having far-infrared and anion emission characteristics are preferably pulverized to 325mesh or less to use 0.5 to 10% by weight. If the amount of natural minerals used is 0.5% by weight or less, far infrared and anion emission characteristics are too low, and even if 10% by weight or more is used, the effect no longer increases. Such natural minerals may include biotite, tourmaline, monazite, gemstone, elvan, and the like, or may be used individually or in combination thereof. More preferably, 1 to 5% by weight is used.

As a filler for increasing the strength of a coating film, it is preferable to use 1-10 weight% of calcium carbonate, zinc oxide, titanium dioxide, etc., respectively, or mixed. When the amount of the filler used is 1% by weight or less, the strength of the coating film is reduced, and even when 10% by weight or more is used, the strength of the coating film no longer increases.

It is preferable to use 0.1-3 weight% of cellulose, casein, sodium alginate, etc., respectively, or mixed as a thickener. If the amount of the viscosity modifier is 0.1 wt% or less, the viscosity is too low to cause phase separation. On the other hand, if it is 3% by weight or more, the viscosity is too high and it is difficult to use. More preferably, 0.2 to 2% by weight is used.

Hereinafter, embodiments of the present invention will be described in detail. However, the exemplary embodiment of the present invention is not limited to these examples.

Examples 1-6

    Preparation of Air Purification Functional Inorganic Coating Composition

As shown in Table 1, a homogeneous aqueous solution was prepared by adding an aqueous potassium silicate solution having a solid content of 40 ± 2 wt% and a molar ratio of K 2 O to SiO 2 of 3.0 ± 0.2 as shown in Table 1. Storage stability, deodorizing effect and reduction rate of radon gas of the coating composition prepared by adding activated carbon and sodium alginate as viscosity modifier were measured and compared with the comparative example.

    Air purification functional inorganic paint composition formulation table (unit: parts by weight) ingredient Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 water 47.8 42.8 37.8 32.8 27.8 22.8 Activated carbon 5 10 15 20 25 30 Potassium silicate 40 40 40 40 40 40 Tourmaline 2 2 2 2 2 2 Zinc oxide 5 5 5 5 5 5 Sodium alginate 0.2 0.2 0.2 0.2 0.2 0.2 Sum 100 100 100 100 100 100

Various performance evaluations were carried out for the following Examples 1 to 6 prepared as in Table 1 above.

① Storage stability: Table 2 shows the results of observing the storage stability with the naked eye after storing at room temperature (20 ± 2 ℃) for 3 months in the room for Example 1-6.

    Storage stability evaluation result of air purification functional inorganic paint division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Phase separation No occurrence No occurrence No occurrence No occurrence No occurrence No occurrence Viscosity change No occurrence No occurrence No occurrence No occurrence No occurrence No occurrence

② Deodorization performance: Deodorization test for Examples 1 to 6 was measured by the KICM-FIR-1004 method to measure the change in concentration (ppm) of the ammonia test gas with the elapsed time by the gas detection tube method, the test results 3 is shown.

    Deodorization Effect of Ammonia Test Gas by Gas Detection Tube Method for Air Purification Functional Mineral Paint Elapsed time division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Early Blank concentration (ppm) 200 200 200 200 200 200 Sample concentration (ppm) 200 200 200 200 200 200 Deodorization rate (%) - - - - - - 30 minutes Blank concentration (ppm) 196 196 196 196 196 196 Sample concentration (ppm) 28 28 25 25 20 20 Deodorization rate (%) 85.7 85.7 87.2 87.2 89.8 89.8 60 minutes Blank concentration (ppm) 189 189 189 189 189 189 Sample concentration (ppm) 22 22 18 18 15 15 Deodorization rate (%) 88.4 88.4 90.5 90.5 92.1 82.1 90 minutes Blank concentration (ppm) 181 181 181 181 181 181 Sample concentration (ppm) 16 16 13 13 11 11 Deodorization rate (%) 91.2 91.2 92.8 92.8 93.9 93.9 120 minutes Blank concentration (ppm) 180 180 180 180 180 180 Sample concentration (ppm) 12 12 10 10 8 8 Deodorization rate (%) 93.3 93.3 94.4 94.4 95.6 95.6

③ Radon Reduction Rate: The base specimen used in the radon reduction efficiency measurement test used cement brick of size 190mmX90mmX55mm, and each test specimen was applied to the cement brick prepared at the same place and time as the base specimen based on the paint prepared in the above example. The test was carried out by painting twice. The radon radiation measurement test was carried out continuously for 72 hours in a small chamber by a continuous monitoring measurement method, and the inside of the chamber maintained a uniform temperature and humidity. The measured values were the average of the measured values of three experiments under the same environmental conditions. The radon blocking rate was shown by calculating the radon reduction rate of each specimen against the radon radiation dose of the blank specimen.

    Radon reduction efficiency of air purification functional inorganic paint division Background Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Radon Release Rate
(pCi / m 2 hr) 20.1 10.05 10.45 10.65 11.05 11.45 12.06 Reduction rate
(%) 50 52 53 55 57 60

Claims (5)

5 ~ 30% by weight activated carbon, 30 ~ 70% by weight aqueous solution of inorganic silicate with solid content of 40 ± 2%, 0.5 ~ 10% by weight of anion and far infrared emitting natural mineral, 0.1 ~ 3% by weight of viscosity modifier, filler 1 Air purification functional inorganic coating composition which mixed water so that it may become -10 weight% and 100 weight% of total amount
The method of claim 1,
Air-purifying functional inorganic coating composition wherein the inorganic silicate aqueous solution uses 30 to 70% by weight of sodium silicate and potassium silicate respectively or mixed
The method of claim 1,
Air purification functional inorganic coating composition using 0.5 ~ 10% by weight of mica, tourmaline and monazite as anion and far infrared ray emitting natural minerals to 325mesh or less
The method of claim 1,
Air-purifying functional inorganic coating composition using 0.1-3% by weight of cellulose, casein, sodium alginate or the like as a viscosity modifier
The method of claim 1,
Air-purifying functional inorganic coating composition using 1 ~ 10% by weight of calcium carbonate, zinc oxide and titanium dioxide as a filler to enhance the strength of the coating film, each of which is pulverized to 325 mesh or less or mixed
KR1020100016002A 2010-02-23 2010-02-23 Radon reduction functional inorganic paint composition KR20110096652A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105198356A (en) * 2015-11-14 2015-12-30 蒋文兰 Colored topaz coating powder with air purification function
CN105198358A (en) * 2015-11-14 2015-12-30 蒋文兰 Colored bloodstone coating powder with air purification function
CN105885618A (en) * 2015-11-26 2016-08-24 无锡英普林纳米科技有限公司 Anti-radon gas coating material
CN109133729A (en) * 2017-06-28 2019-01-04 北新集团建材股份有限公司 A kind of anion mineral wool board and preparation method thereof
CN109852123A (en) * 2019-02-19 2019-06-07 杭州琻泰环境科技有限公司 Titania modified anion fireproof coating and preparation method thereof
KR20220152446A (en) * 2021-05-07 2022-11-16 인하대학교 산학협력단 Manufacturing method of activated carbon containing nano-metal for radon reduction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105198356A (en) * 2015-11-14 2015-12-30 蒋文兰 Colored topaz coating powder with air purification function
CN105198358A (en) * 2015-11-14 2015-12-30 蒋文兰 Colored bloodstone coating powder with air purification function
CN105885618A (en) * 2015-11-26 2016-08-24 无锡英普林纳米科技有限公司 Anti-radon gas coating material
CN109133729A (en) * 2017-06-28 2019-01-04 北新集团建材股份有限公司 A kind of anion mineral wool board and preparation method thereof
CN109852123A (en) * 2019-02-19 2019-06-07 杭州琻泰环境科技有限公司 Titania modified anion fireproof coating and preparation method thereof
CN109852123B (en) * 2019-02-19 2021-04-30 杭州琻泰环境科技有限公司 Titanium dioxide modified negative ion fireproof coating and preparation method thereof
KR20220152446A (en) * 2021-05-07 2022-11-16 인하대학교 산학협력단 Manufacturing method of activated carbon containing nano-metal for radon reduction

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